Enophthalmos ; surgery ; Humans ; Orbital Fractures ; diagnosis ; surgery

Changes of corneal properties induced by laser in situ keratomileusis (LASIK) results in low inaccurate intraocular pressure (IOP) readings by Goldmann applanation tonometry (GAT). Before and after LASIK, the applied value of IOP, measured by dynamic contour tonometry (DCT) in comparison to GAT, was evaluated. Before and 1, 4 weeks after LASIK, the IOP in 30 cases (60 eyes) was measured by GAT and DCT respectively. The obtained results were statistically processed by SPSS11.5 statistical software. The results showed that central corneal thickness (CCT) could affect GAT measurements but not DCT measurements. The comparison of IOP one and 4 weeks after LASIK revealed that the readings from GAT was separately decreased by 5.00 +/- 1.12 and 5.45 +/- 1.13 mmHg as compared with those before LASIK, while those from DCT had no significant difference. It was concluded that LASIK-induced changes of CCT could influence the accuracy of GAT measurements, but had no influence on those from DCT. DCT was more beneficial to the measurements of IOP in normal eyes and those subject to LASIK surgery.

Humans ; Scopolamine ; Phenobarbital ; Suicide

To describe and evaluate a refraction-derived method and a clinically derived method to calculate the correct corneal power for intraocular lens (IOL) power calculations after laser in situ keratomileusis (LASIK) and to compare the results to the commonly used history-derived method. Retrospective analysis were conducted in consecutive case from clinical practice. For each patient, we established the pre-LASIK and post-LASIK spectacle refraction, the pre-LASIK (K(pre)) and post-LASIK K readings (K(post)). We then calculated the pre- and post-LASIK refraction at the cornmeal plane and the amount of correction obtained by the refraction surgery (deltaSEQco). The cases were divided into two groups. Group I was used to derive two formulas. The values obtained with the two methods were compared with the K by history-derived method (K(c.hd) in group II to validate the results. The K values calculated by using the refraction-derived method (K(c.rd)) and the K values calculated using the clinically derived method (K(c.cd)) correlated highly with K(c.hd). The correct corneal power for intraocular lens (IOL) power calculations after LASIK can use refraction-derived method and clinically derived method instead of history-derived method when some refractive parameters are not available.

The present study was performed to investigate the relationship between the countercurrent of portal vein and intrahepatic cancerometastasis in patients with hepatic carcinoma under color Doppler flow imaging.To display the situation of portal carcinomatous thrombosis and intrahepatic cancerometastasis, two dimensional ultrasound was carried out in patients with hepatitis hepatocarcinoma and non hepatitis hepatocarcinoma. Also, color Doppler flow imaging was employed to examine the incidence of the pylic countercurrent and the portal vein hepatic artery fistula in four groups: hepatitis hepatocarcinoma group, non-hepatitis hepatocarcinoma group, hepatocirrhosis group and control group. The results showed that the incidences of portal carcinomatous thrombosis,intrahepatic cancerometastasis and the incidences of the countercurrent in portal vein were higher in hepatitis hepatocarcinoma group than those in non hepatitis hepatocarcinoma group ( P

Objective To investigate the value of laparoscopy combined with esophagogastroscopy in the treatment of achalasia of the cardia. Methods Twenty-five patients with achalasia of the cardia between October 2003 and April 2006 in this department underwent the HellerDor operation under laparoscopy combined with esophagogastroscopy.Results A1l the operations were successfully accomplished.The operating time was 60~240 min(mean,107 min) and the intraoperative blood loss,5~60 ml(mean,22 ml).Intraoperative mucosal perforation was encountered in 4 patients.All the patients got out of bed for activities at 8 hours after operation,with first passage of flatus,removal of the gastric tube,and liquid diet intake at 1~3 days after operation(mean,1.5 days).The esophageal manometry showed the lower esophageal sphincter(LES) pressure had decreased to normal levels at 7 days after operation.The 24-hour ambulatory pH studies showed a high reflex index in 3 patients,but without symptoms.Upper gastrointestinal barium swallow showed the dilated esophagus had a 8~26 mm(mean,18 mm) decrease in diameter at 8 days after operation.The length of postoperative hospitalization was 8~11 days(mean,8.5 days).Follow-up for 1~30 months(mean,5.4 months) in all the patients showed 23 patients were asymptomatic and 2 had intermittent dysphagia.Conclusions Heller-Dor operation under laparoscopy combined with esophagogastroscopy has advantages of precise positioning,little invasion,less pain,and good effects,increasing the quality of operation as well as decreasing the incidence of complications.

Objective To explore the clinical value of domestic harmonic scalpel in laparoscopic cholecystectomy. Methods Modified laparoscopic cholecystectomy (LC) was performed in 36 cases under general anesthesia. The operation was completed by using domestic USI harmonic scalpel in 21 cases (USI Group) and by using imported harmonic scalpel in 15 cases (GEN Group). Results The operation was laparoscopically accomplished in both of the groups, without conversions to open surgery. Of the USI Group, the operating time was 42.6?7.5 min, the postoperative drainage was 34.3?14.0 ml, the length of postoperative hospitalization was 4.9?0.9 d, the speed for cutting cystic duct was 335.1?180.3 ?m/s, the speed for cutting cystic artery was 524.2?127.8 ?m/s, and the denaturalization width of cystic duct was 2 047.6?376.3 ?m. Of the GEN Group, the operating time was 47.0?9.0 min, the postoperative drainage was 38.0?3.9 ml, the length of postoperative hospitalization was 4.3?0.9 d, the speed for cutting cystic duct was 403.5?120.1 ?m/s, the speed for cutting cystic artery was 513.5?125.9 ?m/s, and the denaturalization width of cystic duct was 2 266.7?306.3 ?m. There was no differences in these parameters between the two groups ( P

The primary function of optical in vivo imaging technique is tracing and detecting the action and expression of maker cells,maker microorganisms and maker molecules.This technique makes possible the noinvasive study of biological events continuously with high sensibility,simplicity and high speed.It has been applied in numerous research fields.This paper presents a review of principle and application of this technique.

Objective To investigate the effect of low dose lipopolysaccharide ( LPS ) preconditioning on prevention of incision infection by drug-resistant bacteria.Methods Methicillin-resistant Staphylococcus aureus ( MRSA) suspension with concentration of 1.8 ×109 CFU/mL was prepared.Sixty BALB/c mice were randomly divided into five groups (12 in each group, half male and half female).A medical longitudinal incision of the right thigh was made in mice in group 1-4, and 1, 0.5, 0.25 and 0 mL bacteria suspension was dropped on the surface of the incision and the incision was observed 4d after the model established.Group 5 was the blank control.Then 112 BALB/c mice were randomly divided into 7 groups ( each group had sixteen mice, half male and half female ): group A ( preconditioned with LPS 0.25 mg· kg-1· time-1), group B ( preconditioned with LPS 0.5 mg · kg-1 · time-1 ), group C (preconditioned with LPS 1 mg· kg-1 · time-1 ), group D (preconditioned with LPS 1.5 mg· kg-1 · time-1 ) , group E ( preconditioned with sterile normal saline) , group F ( incision infected) , and group G ( blank control) .LPS was given by intraperitoneal injection 48 h and 24 h before the establishing of the infection model.Body temperature was monitored every day after the model established, blood routine examination was performed on d3 and d7, and serum cytokines was detected on d7.All the mice were sacrificed on d7, and soft tissues around the incision were taken for hematoxylin-eosin staining.Repeated measures ANOVA and univariate ANOVA were performed for data analysis. Results Redness and suppuration were observed in 6 mice infected with 0.5 mL bacteria suspension, respectively, then 0.5 mL bacteria suspension was used for LPS preconditioning experiments.With LPS preconditioning, the body temperatures of mice in group B were with relatively minor changes, and the rises of white blood cells and lymphocytes on d3 and d7 were relatively modest.Granulocytes in group B returned to the normal level on d7.Besides, the rises of interleukin (IL)-1β, IL-6, and tumor necrosis factor (TNF)-αin group B were also less, while IL-10 was increased greatly.Suppuration was observed in 4 mice in group B ( 4/16, 25.00%), and the rate was lower than group D, E and F (χ2 =7.988, 19.940 and 19.940,P<0.01). Conclusion LPS (0.5 mg· kg-1 · time-1 ) preconditioning can reduce the severity of incision infection caused by MRSA in mice.

Objective Pulmonary fibrosis ( PF) is a group of pulmonary interstitial pathological changes caused by various factors, and its pathogenesis is not yet fully elucidated .This article discussed the effect of lycium barbarum polysaccharide ( LBP) on ble-omycin-induced PF in mice and its action mechanisms . Methods The C57/BL6 mice were randomly divided into 6 groups:sham-opera-tion, PF model, dexamethasone ( DM), high-dose LBP, medium-dose LBP, and low-dose LBP.The mice in the sham-operation group were injected into the trachea with isotonic saline and those in the oth-er groups with 5 bleomycin at mg/kg for establishing the PF model . Two days after modeling , the mice in the DM and high-, medium-,and low-dose LBP groups were treated with DM at 5 mg/kg and LBP at 0.8, 0.4, and 0.2 g/kg, while those in the sham-operation and PF model groups with the same volume of isotonic saline , respectively , qd, for 4 consecutive weeks .Then, the pathological chan-ges of the lung tissue were observed and the hydroxyproline ( HYP) content in the lung tissue was detected for all the animals .RT-PCR was used to determine the relative expressions of the PF-related COL1A1 and α-SMA genes. Results Compared with the PF mod-els, the the high-, medium-, and low-dose LBP groups showed significant increased body weight after 4 weeks of medication ([14.29 ±0.38] vs [16.12 ±0.37], [15.58 ±0.25] and [15.07 ±0.21] g, P<0.01), the high-and medium-dose groups ex-hibited remarkably decreased lung indexes ([0.887 ±0.13] vs [0.847 ±0.22] and [0.859 ±0.18]%, P<0.05), and the high-dose group presented markedly reduced alveolitis score (3.40 ±0.23 vs 3.09 ±0.22, P<0.05), PF score (3.57 ±0.27 vs 3.07 ± 0.31, P<0.01) and HYP content ([0.831 ±0.05] vs [0.786 ±0.07] μg/mg wet weight, P<0.05).In comparison with the mod-el group, the DM, high-dose LBP and medium-dose LBP groups showed significantly decreased gene expressions of COL 1A1 (1.53 ± 0.13 vs 1.26 ±0.10 and 0.98 ±0.17, P<0.05) and α-SMA (5.67 ±0.47 vs 4.19 ±0.28 and 2.29 ±0.31, P<0.05). Conclusion LBP can suppress the progression of bleomycin-induced pulmonary fibrosis by inhibiting the gene expressions of COL 1A1 andα-SMA and decreasing the HYP content in the lung tissue .